Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    12/12/2021, 04:36

General

  • Target
    FecitAntiques.exe
  • Size 12KB
  • Sample211212-e8ed4scaf5
  • SHA256 f2e3f685256e5f31b05fc9f9ca470f527d7fdae28fa3190c8eba179473e20789
  • MD5 SHA1 SHA512
Score
8/10

Malware Config

Signatures

  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FecitAntiques.exe
    "C:\Users\Admin\AppData\Local\Temp\FecitAntiques.exe"
    1⤵
    • Modifies extensions of user files
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3788
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\HOW TO GET YOUR FILES BACK.TXT
      2⤵
        PID:800

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/3788-115-0x00000000008B0000-0x00000000008B1000-memory.dmp

          memory/3788-117-0x000000001B440000-0x000000001B442000-memory.dmp